Audi recently unveiled the A5 facelift and now it's time for the A4 to go under the knife.Sporting heavy camouflage, the prototypes feature a new grille, modified bumpers and restyled lighting units. The overall styling tweaks are minor, but give the model a closer resemblance to the A5 and A6.Engine options will likely carryover, but the 3.2-liter FSI will likely be replaced by the new supercharged 3.0-liter TFSI V6 with 272 PS (200 kW / 268 hp).